40252208 has 40 divisors (see below), whose sum is σ = 82360800. Its totient is φ = 19019264.

The previous prime is 40252183. The next prime is 40252211. The reversal of 40252208 is 80225204.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32138 + ... + 33366.

It is an arithmetic number, because the mean of its divisors is an integer number (2059020).

Almost surely, 2^40252208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40252208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41180400).

40252208 is an abundant number, since it is smaller than the sum of its proper divisors (42108592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40252208 is a wasteful number, since it uses less digits than its factorization.

40252208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 40252208 is about 6344.4627826160. The cubic root of 40252208 is about 342.7124666047.

The spelling of 40252208 in words is "forty million, two hundred fifty-two thousand, two hundred eight".